What is an austrolapithecus?

Answer 1

a taxonomic genus, within subfamily Homininae - a group of extinct hominids related to humans

Answer 2

Austrolopithecus is a genus of extinct hominids that lived in Africa around 4-2 million years ago. They are considered distant relatives of modern humans, with a mix of ape and human-like characteristics. They are known for walking upright on two legs, but also possessing some primitive features like a smaller brain size.